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During your lifetime, your heart’s muscular walls pump blood into blood vessels branching throughout your body. Your heart has four chambers. Two upper chambers, called the left and right atria...
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- Nucleus Medical Media
Anatomy and Function of the Heart. Nucleus Medical Media. 6.61M subscribers. Subscribed. 5K. From a channel with a health professional licensed in the US. Learn more about how experts define ...
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Jun 19, 2013 · This animation features the heart and circulatory system and how they work. For more information, visit: http://www.mayoclinic.com/health/heart-disease/DS0...
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- Mayo Clinic
- What Is The Function of The Human Heart?
- What Is The Structure of The Human Heart?
- What Does The Heart's Electrical System do?
- How Does Blood Flow Around The Heart and The body?
- How Do Your Heart and Lungs Add Oxygen to Your Blood?
- What Are Heart and Circulatory Diseases?
- What Causes Your Heart and Circulatory System to Go Wrong?
- What Puts Me at Risk of Heart and Circulatory Disease?
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Each day, your heart beats around 100,000 times. This continuously pumps about five litres (eight pints) of blood around your body through a network of blood vessels called your circulatory system. This blood delivers oxygen and nutrients to all parts of your body to help your organs and muscles work properly. Your blood also carries away unwanted ...
Your heart has a left side and a right side, they are separated by a thin muscular wall called the Septum. Both sides of your heart have an upper chamber and a lower chamber. 1. the upper chambers are called the left atrium and the right atrium(or the atria) 2. the lower chambers are called the left ventricle and the right ventricle. Your heart mus...
Your heart’s electrical system tells your heart when to contract and when to relax to keep your blood pumping regularly. The instructions to contract and relax are carried by electrical signals. The electrical signals are sent from the sinus node which is known as your heart’s natural pacemaker. Usually, the sinus node will send the electrical sign...
Your heart is linked to the rest of the circulatory system with blood vessels called arteries and veins. 1. your arteries deliver oxygen-rich blood from the heart to other areas of your body 2. your veins return the de-oxygenated blood from your organs back to your heart 3. your arteries and veins are connected by even smaller blood vessels called ...
Your blood flows through your heart and your lungs to become re-oxygenated before being pumped to the rest of your body. Oxygen is added to your blood in four main steps, they are: 1. The right atrium receives the low-oxygen blood that has just travelled round the body. The right atrium pumps the blood to the right ventricle. 2. The right ventricle...
Sometimes the heart and circulatory system don’t work like they should, this can cause heart and circulatory diseases (also called cardiovascular diseases). We fund research into these conditions and their risk factors, including: 1. coronary heart disease(heart attack and angina) 2. congenital heart disease 3. inherited heart conditions 4. stroke ...
Problems with your heart and circulatory system, including heart attack or a stroke, are usually caused by a gradual build-up of fatty material (called atheroma) in the arteries around the heart and in the arteries that supply blood to your brain. The fatty material lines the walls of heart’s coronary arteries making the space for blood to flow nar...
Many heart and circulatory diseases share the same risk factors including: 1. poorly managed diabetes 2. high blood pressure 3. high cholesterol 4. being overweight or obese 5. smoking 6. drinking too much alcohol. Heart and circulatory diseases can be worrying but the good news is that there are lots of things you can do to reduce your risk of dev...
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We’re funding vital research to help prevent and treat people living with heart and circulatory diseases. But more needs to be done. Your support funds crucial research so that we can beat these conditions and save lives. DONATE
Anatomy of the Heart. Figure 1. Anterior view of the heart A with and B without coronary fat and vessels. Figure 2. Posterior view of the heart A with and B without coronary fat and vessels. Figure 3. Lateral view of the right atrium of the heart, with A the outer wall of the right atrium dissected and peeled back.
Nov 3, 2023 · The heart has five surfaces: base (posterior), diaphragmatic (inferior), sternocostal (anterior), and left and right pulmonary surfaces. It also has several margins: right, left, superior, and inferior: The right margin is the small section of the right atrium that extends between the superior and inferior vena cava.
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The muscular wall of the heart has three layers. The outermost layer is the epicardium (or visceral pericardium). The epicardium covers the heart, wraps around the roots of the great blood vessels, and adheres the heart wall to a protective sac. The middle layer is the myocardium.
